radiolarian
🇬🇧/ˌreɪdiəʊˈleəriən/ 🇺🇸/ˌreɪdioʊˈleriən/ 15any of various marine protozoans constituting the order Radiolaria, typically having a siliceous shell and stiff radiating cytoplasmic projections.放射虫
adjective [原级]放射虫类的
This conclusion provides evidence that radiolarian abundance and diversity are indicators for investigating sea-level changes.
煤山剖面放射虫动物群与海平面变化之间的这种耦合性为海平面变化的研究提供了依据。
noun [专属名词]放射虫
The radiolarian cherts in the Wenbei region of Shaanxi Province are a formation of pelagic sediments formed within the North China Platform.
渭北奥陶系的放射虫燧石岩是在稳定的华北地台上形成的远洋沉积。
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